For 2026, MRCOOL’s 24 SEER2 and Zone Air’s 23 SEER2 come down to your winter...

https://homesandexterior.com/best-diy-mini-split-heat-pump-2026-mrcool-vs-competitors/

For 2026, MRCOOL’s 24 SEER2 and Zone Air’s 23 SEER2 come down to your winter needs: choose MRCOOL for value above -15°F, or Zone Air Hyper Heat for heating down to -22°F.